This study comes from the BMJ, formerly known as the British Medical Journal. I've included the conclusions here and a link to the entire study. This shows once again that surgery for orthopedic issues should be a last resort. -- Laura

​Conclusions and policy implicationsThe observed difference in treatment effect was minute after two years’ follow-up, and the trial’s inferential uncertainty, as shown by the 95% confidence limits, was sufficiently small to exclude clinically relevant differences. Supervised exercise therapy showed positive effects over surgery in improving thigh muscle strength, at least in the short term. Nineteen per cent of participants allocated to exercise therapy crossed over to surgery during the two year follow-up, with no additional benefit. No serious adverse events occurred in either group during the two year follow-up. Our results should encourage clinicians and middle aged patients with degenerative meniscal tear and no radiographic evidence of osteoarthritis to consider supervised structured exercise therapy as a treatment option.